Letts Monster Practice Friendly monsters introduce key numeracy and literacy skills, to make learning fun and engaging for your child. The curriculum-based skills practice is accompanied by fun activities and colour stickers to reward and motivate. Monster characters that your child will love; Practice and reinforcement of skills covered in school; Fun activities for motivation; Colourful monster sticker rewards; Make your own monster mask; "Create your own monster" competition - the winning monster will appear in one of our future books!